/* ============================================================
   SAPACO — Design tokens
   ============================================================ */
:root{
  --navy: #0B1D36;
  --navy-800: #142B4D;
  --teal: #00C2B3;
  --teal-dim: #00C2B322;
  --orange: #F97316;
  --text: #0F172A;
  --text-secondary: #64748B;
  --bg: #F1F5F9;
  --surface: #FFFFFF;
  --border: #E2E8F0;

  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'SFMono-Regular', Consolas, monospace;

  --radius: 10px;
  --radius-lg: 16px;
  --rail-w: 34px;
  --content-max: 1180px;

  /* Remote imagery: intentionally loaded from the web, not stored in local assets. */
  --image-mining: url("https://images.unsplash.com/photo-1711012604128-8339024a3e12?auto=format&fit=crop&w=1400&q=72");
  --image-software: url("https://images.unsplash.com/photo-1778074762033-c6595907684d?auto=format&fit=crop&w=1400&q=72");
  --image-cloud: url("https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1400&q=72");
  --image-ai: url("https://images.unsplash.com/photo-1677126577258-1a82fdf1a976?auto=format&fit=crop&w=1400&q=72");

  --ease: cubic-bezier(.22,.9,.3,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

body{
  margin: 0;
  font-family: var(--font-ui);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  padding-left: var(--rail-w);
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin: 0; padding: 0; }
h1,h2,h3{ font-weight: 700; letter-spacing: -0.02em; margin: 0; }
p{ margin: 0; }
button{ font-family: inherit; }

.req{ color: var(--orange); }

/* ============================================================
   Signature element: the Core Rail
   A fixed drill-core depth indicator running the full page,
   filling as the visitor scrolls from "surface" (hero) toward
   deeper content — echoing the exploration→AI lifecycle.
   ============================================================ */
.core-rail{
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--rail-w);
  background:
    repeating-linear-gradient(
      to bottom,
      var(--navy) 0px, var(--navy) 6px,
      #10233f 6px, #10233f 12px
    );
  border-right: 1px solid rgba(255,255,255,.08);
  z-index: 500;
  overflow: hidden;
}
.core-rail__fill{
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0%;
  background: linear-gradient(to bottom, var(--teal), #00958a);
  box-shadow: 0 0 12px 1px var(--teal);
  transition: height .08s linear;
}
.core-rail__label{
  position: absolute;
  left: 50%;
  transform: translateX(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .12em;
  color: rgba(255,255,255,.55);
}
.core-rail__label--top{ top: 14px; }
.core-rail__label--bottom{ bottom: 14px; }

.noise-overlay{ display:none; }

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(241,245,249,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color: var(--border);
  background: rgba(241,245,249,.95);
}
.header-inner{
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo{ display: flex; align-items: center; gap: 10px; }
.logo__mark{
  width: 22px; height: 22px;
  border-radius: 5px;
  background: linear-gradient(155deg, var(--teal) 0%, var(--navy) 100%);
  flex-shrink: 0;
}
.logo__text{
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--navy);
}
.main-nav{ display: flex; gap: 30px; }
.main-nav a{
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color .2s;
}
.main-nav a:hover{ color: var(--navy); }
.main-nav a::after{
  content:'';
  position: absolute; left:0; right:0; bottom: -2px;
  height: 2px; background: var(--teal);
  transform: scaleX(0); transform-origin: left;
  transition: transform .25s var(--ease);
}
.main-nav a:hover::after{ transform: scaleX(1); }

.header-actions{ display: flex; align-items: center; gap: 14px; }

.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none; border: none; cursor: pointer;
  padding: 8px;
}
.nav-toggle span{
  width: 20px; height: 2px; background: var(--navy); display: block;
  transition: transform .25s var(--ease), opacity .2s;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s, color .2s, border-color .2s;
  white-space: nowrap;
}
.btn--primary{
  background: var(--teal);
  color: #002B27;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.btn--primary:hover{ transform: translateY(-1px); box-shadow: 0 8px 20px -6px var(--teal-dim); }
.btn--outline{
  border-color: rgba(255,255,255,.35);
  color: #fff;
}
.btn--outline:hover{ background: rgba(255,255,255,.1); }
.btn--ghost{
  border-color: var(--border);
  color: var(--navy);
  background: transparent;
}
.btn--ghost:hover{ background: var(--surface); }
.btn--block{ width: 100%; }
.btn--small{ padding: 9px 16px; font-size: 13px; }

/* ============================================================
   Hero — strata layers, surface → depth
   ============================================================ */
.hero{
  position: relative;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  background: var(--navy);
  color: #fff;
  padding: 120px 28px 60px;
}
.hero-photo{
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(180deg, rgba(11,29,54,.78) 0%, rgba(11,29,54,.46) 48%, rgba(11,29,54,.88) 100%),
    linear-gradient(90deg, rgba(11,29,54,.68), rgba(0,194,179,.14)),
    var(--image-mining);
  background-position: center;
  background-size: cover;
  opacity: .48;
  mix-blend-mode: luminosity;
  pointer-events: none;
}
.strata{
  position: absolute; inset: 0;
  z-index: 0;
}
.strata__layer{
  position: absolute;
  left: -10%; right: -10%;
  height: 26%;
  top: calc(var(--i) * 20%);
  background: linear-gradient(180deg,
    hsl(213 55% calc(12% + var(--i) * 1.5%)) 0%,
    hsl(213 55% calc(9% + var(--i) * 1.5%)) 100%);
  transform: skewY(-3deg) translateY(0);
  animation: driftLayer 22s ease-in-out infinite;
  animation-delay: calc(var(--i) * -3s);
  opacity: .9;
}
.strata__layer:nth-child(1){ --tint: var(--navy); }
.strata__glow{
  position: absolute;
  left: 50%; bottom: -10%;
  width: 70vw; height: 70vw;
  max-width: 900px; max-height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--teal-dim) 0%, transparent 65%);
  filter: blur(20px);
}
@keyframes driftLayer{
  0%, 100%{ transform: skewY(-3deg) translateY(0); }
  50%{ transform: skewY(-3deg) translateY(-2%); }
}

.hero-inner{
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 18px;
}
.eyebrow--dark{ color: #0b8f83; }
.hero-title{
  font-size: clamp(34px, 5.6vw, 60px);
  line-height: 1.06;
  margin-bottom: 22px;
}
.hero-title__accent{ color: var(--teal); }
.hero-sub{
  font-size: 17px;
  line-height: 1.6;
  color: rgba(255,255,255,.72);
  max-width: 600px;
  margin: 0 auto 34px;
}
.hero-ctas{
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.depth-scale{
  position: relative;
  z-index: 2;
  max-width: var(--content-max);
  margin: 60px auto 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,.4);
  border-top: 1px dashed rgba(255,255,255,.18);
  padding-top: 12px;
}

/* reveal-on-scroll */
[data-reveal]{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }

/* ============================================================
   Trust strip
   ============================================================ */
.trust-strip{
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 34px 28px;
  text-align: center;
}
.trust-strip__label{
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.trust-strip__row{
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  font-weight: 700;
  font-size: 15px;
  color: var(--navy);
  opacity: .55;
  letter-spacing: -0.01em;
}

/* ============================================================
   Pillars — the core reading
   ============================================================ */
.pillars{
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 110px 28px 90px;
}
.section-head{ max-width: 620px; margin-bottom: 64px; }
.section-head h2{ font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 16px; }
.section-sub{ color: var(--text-secondary); font-size: 16px; line-height: 1.6; }

.pillar-list{
  display: flex;
  flex-direction: column;
}
.pillar{
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 40px;
  padding: 44px 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.pillar:last-child{ border-bottom: 1px solid var(--border); }
.pillar__index{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pillar__num{
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  color: var(--navy);
  opacity: .16;
  transition: opacity .3s;
}
.pillar:hover .pillar__num{ opacity: .9; color: var(--teal); }
.pillar__depth{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: .04em;
}
.pillar__body h3{ font-size: 23px; margin-bottom: 12px; }
.pillar__lede{
  color: var(--text-secondary);
  font-size: 15.5px;
  line-height: 1.6;
  max-width: 560px;
  margin-bottom: 24px;
}
.pillar__visual{
  position: relative;
  min-height: 138px;
  height: clamp(138px, 15vw, 178px);
  margin: 0 0 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--navy);
  background-image:
    linear-gradient(90deg, rgba(11,29,54,.72) 0%, rgba(11,29,54,.18) 58%, rgba(0,194,179,.10) 100%),
    var(--pillar-image);
  background-position: center;
  background-size: cover;
  overflow: hidden;
}
.pillar__visual::before{
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.13) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.10) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: .34;
}
.pillar__visual::after{
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  height: 1px;
  background: linear-gradient(90deg, var(--teal), transparent);
  opacity: .8;
}
.pillar__visual--mining{ --pillar-image: var(--image-mining); background-position: center 54%; }
.pillar__visual--software{ --pillar-image: var(--image-software); background-position: center 38%; }
.pillar__visual--cloud{ --pillar-image: var(--image-cloud); background-position: center; }
.pillar__visual--ai{ --pillar-image: var(--image-ai); background-position: center 46%; }
.pillar__stages{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.pillar__stages li{
  border-left: 2px solid var(--border);
  padding-left: 14px;
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.5;
  transition: border-color .25s;
}
.pillar__stages li span{
  display: block;
  font-weight: 700;
  color: var(--text);
  font-size: 13.5px;
  margin-bottom: 3px;
}
.pillar:hover .pillar__stages li{ border-left-color: var(--teal); }

/* ============================================================
   Services split
   ============================================================ */
.services{ background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.services__inner{
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 80px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.chip{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--teal);
  background: #00c2b314;
  border: 1px solid #00c2b333;
  padding: 5px 11px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.services__col h3{ font-size: 21px; margin-bottom: 10px; }
.services__col p{ color: var(--text-secondary); font-size: 15px; line-height: 1.6; }

/* ============================================================
   AI callout
   ============================================================ */
.ai-callout{
  background: var(--navy);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.ai-callout::before{
  content: '';
  position: absolute;
  right: -10%; top: -30%;
  width: 60vw; height: 60vw;
  max-width: 700px; max-height: 700px;
  background: radial-gradient(circle, var(--teal-dim), transparent 65%);
}
.ai-callout__inner{
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding: 110px 28px;
  text-align: center;
}
.ai-callout h2{ font-size: clamp(28px, 3.6vw, 38px); margin: 18px 0 20px; }
.ai-callout p{ color: rgba(255,255,255,.72); font-size: 16.5px; line-height: 1.65; max-width: 560px; margin: 0 auto; }
.ai-callout__grid{
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}
.ai-stat{
  border-top: 1px solid rgba(255,255,255,.18);
  padding-top: 14px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  line-height: 1.5;
}
.ai-stat span{
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 6px;
}

/* ============================================================
   Quote block
   ============================================================ */
.quote-block{
  max-width: 860px;
  margin: 0 auto;
  padding: 110px 28px;
  text-align: center;
}
.quote-block blockquote{
  margin: 0;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.5;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: -0.01em;
}

/* ============================================================
   About
   ============================================================ */
.about{ background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.about__inner{
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 100px 28px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: start;
}
.about__text h2{ font-size: clamp(26px, 3.2vw, 34px); margin: 16px 0 20px; }
.about__text p{ color: var(--text-secondary); font-size: 16px; line-height: 1.7; }
.about__card{
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.fact-list div{
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.fact-list div:last-child{ border-bottom: none; }
.fact-list dt{ color: var(--text-secondary); }
.fact-list dd{ margin: 0; font-weight: 600; text-align: right; }

/* ============================================================
   Contact
   ============================================================ */
.contact{ padding: 110px 28px; }
.contact__inner{
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 64px;
}
.contact__intro h2{ font-size: clamp(26px, 3.2vw, 34px); margin: 16px 0 16px; }
.contact__intro p{ color: var(--text-secondary); font-size: 15.5px; line-height: 1.65; }
.contact-details{
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14.5px;
}
.contact-details a{ color: var(--navy); font-weight: 600; }
.contact-details a:hover{ color: var(--teal); }
.contact-details span{ color: var(--text-secondary); }

.contact-form{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row{ display: flex; flex-direction: column; gap: 8px; }
.form-row--split{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-row--split > div{ display: flex; flex-direction: column; gap: 8px; }
.form-row label{ font-size: 13.5px; font-weight: 600; color: var(--text); }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea{
  font-family: inherit;
  font-size: 14.5px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  transition: border-color .2s, box-shadow .2s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-dim);
}
.form-row textarea{ resize: vertical; min-height: 96px; }

.form-row--checkbox{
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
}
.form-row--checkbox input{
  margin-top: 3px;
  width: 16px; height: 16px;
  accent-color: var(--teal);
  flex-shrink: 0;
}
.form-row--checkbox label{ font-weight: 400; font-size: 13.5px; color: var(--text-secondary); line-height: 1.5; }
.form-row--checkbox label a{ color: var(--navy); text-decoration: underline; }

.form-note{
  font-size: 13.5px;
  min-height: 18px;
  color: var(--teal);
  font-weight: 600;
}
.form-note.is-error{ color: var(--orange); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer{
  background: var(--navy);
  color: rgba(255,255,255,.6);
}
.site-footer__inner{
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 56px 28px 40px;
  text-align: center;
}
.site-footer__brand{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  margin-bottom: 14px;
}
.site-footer__reg{ font-size: 13px; margin-bottom: 22px; }
.site-footer__links{
  display: flex;
  justify-content: center;
  gap: 24px;
  font-size: 13.5px;
  margin-bottom: 22px;
}
.site-footer__links a:hover{ color: var(--teal); }
.site-footer__contact{ font-size: 13.5px; margin-bottom: 8px; }
.site-footer__copy{ font-size: 12px; color: rgba(255,255,255,.35); }

/* ============================================================
   Cookie banner
   ============================================================ */
.cookie-banner{
  position: fixed;
  left: calc(var(--rail-w) + 20px);
  right: 20px;
  bottom: 20px;
  max-width: 620px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px -12px rgba(11,29,54,.25);
  padding: 20px 22px;
  z-index: 400;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  transform: translateY(140%);
  transition: transform .5s var(--ease);
}
.cookie-banner.is-visible{ transform: translateY(0); }
.cookie-banner p{ font-size: 13.5px; color: var(--text-secondary); flex: 1 1 260px; }
.cookie-banner a{ color: var(--navy); text-decoration: underline; }
.cookie-banner__actions{ display: flex; gap: 10px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px){
  .pillar{ grid-template-columns: 1fr; gap: 14px; }
  .pillar__stages{ grid-template-columns: repeat(2, 1fr); }
  .services__inner{ grid-template-columns: 1fr; }
  .about__inner{ grid-template-columns: 1fr; }
  .contact__inner{ grid-template-columns: 1fr; }
  .ai-callout__grid{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  :root{ --rail-w: 20px; }
  .main-nav{
    position: fixed;
    top: 63px; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 8px 28px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
    margin-left: calc(-1 * var(--rail-w));
    padding-left: calc(28px + var(--rail-w));
  }
  .main-nav.is-open{ opacity: 1; transform: translateY(0); pointer-events: auto; }
  .main-nav a{ padding: 14px 0; border-bottom: 1px solid var(--border); }
  .header-actions .btn--ghost{ display: none; }
  .nav-toggle{ display: flex; }
  .nav-toggle.is-active span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
  .nav-toggle.is-active span:nth-child(2){ opacity: 0; }
  .nav-toggle.is-active span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

  .form-row--split{ grid-template-columns: 1fr; }
  .pillar__visual{ min-height: 118px; height: 34vw; margin-bottom: 22px; }
  .depth-scale{ display: none; }
  .cookie-banner{ left: calc(var(--rail-w) + 12px); right: 12px; }
}

/* Visible focus for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}